brainattic for ChatGPT

ai.brainattic/knowledge-base

The knowledge base your AI reads and writes, under your rules — over MCP, EU-hosted.

client:ChatGPT transport:streamable-http

Install brainattic in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://app.brainattic.ai/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs